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Sony FE 40mm f/2.5 G Lens

BH #SO4025G • MFR #SEL40F25G
Sony FE 40mm f/2.5 G Lens
Key Features
  • E-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.5 to f/22
  • Three Aspherical Elements
  • Minimum Focus Distance: 9.8"
A comfortable focal length with an especially portable design, the Sony FE 40mm f/2.5 G is a versatile prime; an ideal single focal length option for a broad variety of situations. This lens's smart build and sophisticated G Series optics mix with intuitive handling and the sleek form factor to make it a go-to option for anything from street to landscape to travel applications.
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Sony FE 40mm f/2.5 G Overview

  • 1Description
  • 2Wide-Normal Portable Prime
  • 3Matched Set of Compact Primes
  • 4G Lens Series
  • 5Focus Control for Stills and Video
  • 6Sleek-but-Robust Design
By B&H Photo's
Wide-Normal Portable Prime
A comfortable focal length with an especially portable design, the Sony FE 40mm f/2.5 G is a versatile prime; an ideal single focal length option for a broad variety of situations. This lens's smart build and sophisticated G Series optics mix with intuitive handling and the sleek form factor to make it a go-to option for anything from street to landscape to travel applications.
Matched Set of Compact Primes
Together with the FE 24mm f/2.8 and 50mm f/2.5 G lenses, these three lenses form a cohesive trio with similar styling, image quality, and ergonomics:
  • All lenses prioritize a compact profile with an emphasis on intuitive handling; each features a manual aperture ring along with other tactile controls.
  • The three lenses share the same 49mm filter ring diameter.
  • Matched aluminum finish with stylish focal length and aperture engravings, both aperture and focusing rings, and matching metal lens hoods.
G Lens Series
  • Three aspherical elements promote more uniform sharpness across the frame by suppressing spherical aberrations and distortions.
  • Rounded 7-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
Focus Control for Stills and Video
  • Two linear motors deliver quick and accurate autofocus performance, along with capable subject tracking for working with fast-moving subjects. This AF system is also especially quiet to suit its use for cine applications.
  • Internal focusing design limits the overall length of the lens for faster, more responsive focusing.
  • Linear Response manual focus control offers more natural handling and an AF/MF switch is located on the lens barrel for tactile control over this setting.
  • Customizable focus hold buttons are present on the lens barrel for intuitive tactile control and rapid access to select settings.
  • Impressive close-up performance for working with close-up subjects; this lens has a minimum focusing distance of 9.8" with MF (11" with AF), which results in a 0.23x maximum magnification.
Sleek-but-Robust Design
  • Physical aperture ring can be de-clicked for smooth, silent aperture switching to benefit video applications.
  • Lens measures 1.8" and weighs 6.1 oz, making it a great portable choice that's well-suited to both full-frame and APS-C bodies.
  • Dust- and moisture-sealed design better permits working in inclement conditions.
  • Fluorine-coated front element is easy to clean and resists dust, moisture, and fingerprints.

Sony FE 40mm f/2.5 G Specs

Key Specs
Focal Length
40mm
Maximum Aperture
f/2.5
Lens Mount
Sony E
Lens Format Coverage
Full-Frame
Focus Type
Autofocus
Image Stabilization
No
Filter Size
49 mm (Front)
Maximum Aperture
f/2.5
Minimum Aperture
f/22
Lens Mount
Sony E
Lens Format Coverage
Full-Frame
Angle of View
57°
Minimum Focus Distance
9.8" / 25 cm
Maximum Magnification
0.23x
Optical Design
9 Elements in 9 Groups
Diaphragm Blades
7, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
49 mm (Front)
Dimensions (ø x L)
2.7 x 1.8" / 68 x 45 mm
Weight
6.1 oz / 173 g
Packaging Info
Package Weight
0.695 lb
Box Dimensions (LxWxH)
4.7 x 4.2 x 3.4"

Sony FE 40mm f/2.5 G Reviews

See any errors on this page? Let us know

What is the purpose of the aperture index mark on ...

What is the purpose of the aperture index mark on the aperture ring?
Asked by: Mark
That allows you to easily see what aperture you are in without having to look at the camera. Some people like the old school dials like that since they do not have to keep looking at the camera LCD to see what aperture they are on.
Answered by: Daniel C
Date published: 2022-12-05

What is the size of the focus ring? Looking to ...

What is the size of the focus ring? Looking to purchase a third party focus gear to use the lens with a follow focus.
Asked by: EDC VISUALS
The Sony FE 40mm f/2.5 G Lens has a 68mm diameter.
Answered by: Paige K
Date published: 2022-06-20

Is lack of OSS a problem for video work? I have ...

Is lack of OSS a problem for video work? I have the A7RIV and want a compact travel lens for hand-held video and photography. I like the AF/MF features a lot, but lack of OSS is a concern.
Asked by: Chris
The lack of Optical Steady Shot in the FE 40mm f/2.5 G Lens would not be a problem since the A7R IV would already have stabilization built in.
Answered by: Kirk
Date published: 2024-01-05

Do focus ring and aperture control ring work ...

Do focus ring and aperture control ring work without lens communication? Since they are built onto the lens is it possible to adapt it onto other camera bodies via adapters that don't have lens communication? For instance, l mount bodies.
Asked by: Yifei
This lens offers control of the aperture via the camera when setting the aperture ring to A or manual control directly on the ring. This is available on Sony E mount bodies only.
Answered by: Kirk
Date published: 2021-06-24

Does this lens breath?

Does this lens breath?
Asked by: Douglas
This lens is brand-new and hasn't been tested, but it most likely exhibits minimal breathing.
Answered by: Boyd H
Date published: 2021-04-17

Does the Sony 40 mm FE 2.5 lens come with a lens ...

Does the Sony 40 mm FE 2.5 lens come with a lens hood?
Asked by: Gerard
Yes. The Sony FE 40mm f/2.5 G Lens comes with this hood: https://bhpho.to/3lSuLsj
Answered by: Dan W
Date published: 2024-04-12

Are these lenses weather sealed?

Are these lenses weather sealed?
Asked by: Marcelo
The Sony FE 40mm f/2.5 G Lens does have weather sealing that is designed to make the lens dust- and moisture-resistant, but Sony states that it is not guaranteed to be 100% dust- and moisture-proof.
Answered by: Manzell
Date published: 2024-01-05

So is this Sony's answer to the next iteration of ...

So is this Sony's answer to the next iteration of RX1r iii? No need because you have the 7C with one of these?
Asked by: Jay
Great question and we will have to wait and see. I’ve used both generations of the RX1 and both time found myself wishing I had a little more focal length at times and others a wider AOV. Still the appeal of a fixed lens P/S goes back to the Nikon 28&35 Ti’s, the Contax T2 and the Yashica T4. Today we have the Zeiss ZX1, Leica Q2 and two monsters in the category the Fuji X100’s and Ricoh GR series. There is a draw by some for a fixed lens high end camera with minimal options. We’ll have to wait and see what Sony does. Personally I am thinking the A7C with the 40mil would be a perfect companion for my Leica CL and 40mm C Summicron.
Answered by: Chuck
Date published: 2022-07-09
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